Accurate laser shaft alignment of the driver to the driven machine requires that the cardan shaft and its couplings be removed. Proper shaft alignment is not dictated by the total indicator reading tir of the coupling hubs or the shafts, but rather by the proper centers of rotation of the shaft. The intuitive and affordable laser shaft alignment system skf shaft alignment tool tksa 31 the tksa 31 is skf s most affordable solution for easy laser shaft alignment. Modelling of propulsion shaft line and basic procedure of shafting alignment calculation article pdf available in brodogradnja 593.
The goal of the alignment process is to create a straight line through the coupling, as shown in figure 1. Shaft alignment handbook third edition by john piotrowski pdf, lots of the substance amenities taken for granted in the modern society are made possible by the many rotating machinery systems found in each area of the planet. This paper presents a comprehensive alignment analysis process for a long shafting system. Shaft alignment calculator for android free download and. These changes in the shaft alignment can be accommodated in a few different ways. The model considered is a 60 m long shafting system of a ship consisting of 10 bearings, one gearbox and one main engine. Propulsion shaft alignment method and analysis for surface. The primary reasons why machinery is misaligned is lack of proper training, improper tools to do the job, and that people are not given enough time to do it right. Fixturlaser, a manufacturer of laserbased shaft alignment systems, has developed three free mobile device apps for shaft alignment personnel. Machinery alignment tolerance tables the suggested alignment tolerances shown here are general values based upon experience and general industry standards and should not be exceeded. Software downloads for shaft alignment calculation.
Alignment of the shaft is necessary when the motor or driven machinery is new or when it is dismantled due to improper running. The calculator employs a series of lights and associated identification which indicate to the user what data to enter and the sequence in which to enter data. The specification discloses a calculator for determining the distance that a machine coupled to a second machine must be moved so that the coupled shafts between the machines will be properly aligned. Bearings, mechanical seals, packing, and couplings are all directly affected by the alignment of shaft center lines. A good static alignment is required for troublefree dynamic operation of the propulsion shafting. Shaftdesigner is a computeraided engineering shaftdesigner is the engineering software to calculate optimal shaft alignment, reverse alignment problem, torsional vibration including ice and transient, as well as axial and whirling vibration, din743 based calculation.
Shaft alignment industrial wiki odesie by tech transfer. Shaft alignment methods explained bright hub engineering. The data validity rule 1 shown in following equation. Used in ship repair, service, consulting, new builds. With easylaser xt770 you can perform shaft alignment of horizontal and verticallyflange mounted machines, but also align machine trains, measure twist of foundation, soft foot, bearing clearance, and more. With feeler gauge find obvious gaps and fill them with shims. The fixturlaser dials app performs all dial indicator shaft alignment calculations as it guides the user through the reverse rim alignment process with its stunning 3d graphical interface. A laser shaft alignment by ipspsds for rotary machine. Changes in the temperature of machines from off line to running can have a significant impact on the shaft alignment.
It is calculated, conducted and verified when the system is at rest. Rotalign touch advanced laser shaft alignment system. The shaft alignment module in nauticus machinery is an advanced and flexible software tool for calculation of the optimal shaft alignment and natural. I like to lubricate the cutlass bearing with washing up liquid then whilst inside drop the shaft out and lift half the play and offer the shaft to the drive flange i would then expect the shaft to sit nicley and cleanly into the flange resess. Vibralign recognized a need to make it easier to evaluate laser shaft alignment results achieved through traditional analog methods like dial indicators, which are often expressed in different. Shaft alignment calculation and software drawing on significant experience with rotating machinery and propulsion shaft services, skf marine provides a range of valuable design and calculation services for the marine industry. If, on the other hand, you update your knowledge of shaftalignment techniques and acceptable alignment tolerances, you might be on the way to becoming more reliabilityfocused.
The vibralign laserdials app converts rotating shaft alignment data between dial indicator readings and laser shaft alignment system angles and offsets. The therm align app helps those performing shaft alignments calculate the value of compensations for thermal growth of rotating equipment. Moreover, as the name suggests, the main purpose of shaft alignment is to make sure that the center line of the motor rotor shaft coincides with the center line of the driven machinery i. All of the parts included in the turbine alignment tools are designed and built for the most demanding workplace and for. Uptodate disks built with advanced format technology requires the right alignment to achieve the best performance. Introduction the main propulsion shaft line is the essential part of a modern ship propulsion system, exposed to various conditions throughout the ships lifetime. The bent shaft affects alignment process by showing improper reading.
Xt770 the complete shaft alignment system easylaser. Ppt alignment powerpoint presentation free to download. The therm align app helps those performing shaft alignments calculate the value of compensations for thermal growth also known as dynamic movement of rotating equipment. Virtually everything we consume or use has been touched or produced in some manner by rotating gear. There are two categories of essential information for shaft alignment calculation. Download them today and let us know which are most useful to you. Therm align will calculate the thermal offsets needed to compensate for this thermal movement. Here you can download the pdf template of the tksa 20 shaft alignment report, which can be used for documenting of your alignment activities. Proper shaft alignment is especially critical when the motor is operated at high speeds. Measure and correct alignment of the machine to achieve the final alignment to the required targets within tolerances. In practice, proper alignment is difficult to achieve without using alignment equipment such as dial indicators or laser alignment tools.
Thats why the shaft alignment software was designed to help walk you through the stepbystep process of aligning your rotating machinery. The app guides the user through the complete measurement and alignment process simplifying otherwise cumbersome tasks such as calculations and determination of directions and amount to move the machine to achieve a. A static condition observed at the bearings supporting the propulsion shafts. To correct vertical misalignment, follow the steps below. The thing is the shaft is not rigid, it is movable and should be. Reliability of shaft alignment calculations depends on the completeness and accuracy of propulsion shafting modeling. Shaft alignment software free download shaft alignment. The main purpose of shaft alignment is to make sure that the center line of the motor rotor shaft coincides with the center line of the driven machinery i. For example, the only correct way to express shaftalignment tolerances is in terms of alignment conditions at the coupling, and we will describe several ways to do this.
If both shafts rotate or one shaft rotates, the dial indicator reading is the same, and is equal to double value of the actual misalignment amount 52 1reversal alignment f driver equipment m 53 f m 54 paralell readings 12 ock 12 ock 54 6 ock 6 ock 55 paralell readings 12 ock 12 ock 55 6 ock 6 ock 56 chapter 4 1reversal alignment calculation. The shaft alignment designer should have the complete information to model the propulsion shafting properly. To perform shaft alignment mostly consuming time to moving the machinery to align the shafts, with this calculator can assist to calculate the result of alignment more quickly and precision. Measure, diagnose, and correct soft foot with the assistance of the laser system and feeler gauges. Our propulsion software simplifies your analysing process by integrating the three mentioned calculation methods into. If the movable shaft is below the horizontal stationary shaft reference line, the shaft is positioned to the left. The book is reference material on rotating machinery basics, pump overhaul, mechanical seals, basic vibration, and shaft alignment. Shaft alignment calculation free software download. Skf shaft alignment tool tksa 51 instruction and demonstration duration. The rotalign touch is the most powerful laser shaft alignment platform on the market. Then, through the use of a laseralignment system and a specially constructed cardan offset bracket, the angle between the machines can be easily determined and corrected.
A practical guide to shaft alignment plant services. It is not intended as a comprehensive guide to alignment of process machinery, nor is it a substitute for seeking professional advice or reference to the manufacturers of the machinery. Shaftdesigner the shaft calculation software by imt. Care has been taken by the authors, pruftechnik ltd, in the preparation of this publication. The alignment of shaft with the bearing and housing, which is a manufacturing tolerance stackup of the bearing parts and the housing bores and faces. Therm align a thermal growth calculator for machine. Shaft alignment, free shaft alignment software downloads. The ergonomic display unit with touch screen makes the instrument very easy to use and the builtin machine library helps storing alignment reports for multiple machines. Essential information for shaft alignment calculations. Rotalign touch laser shaft alignment systems pruftechnik. The primary and optional data entry windows intuitively tells you what information is required, and if you make a mistake, there are background routines to point out your errors. Shaft alignment, whirling and axial vibration calculations are traditionally regarded as three much separated mathematical problems. Download shaft alignment handbook third edition by john.
Objective of shaft alignment is to increase the operating life span of rotating machinery. In nauticus machinery shaft alignment these effects can be carefully considered when designing an optimal shaft line in order to avoid problems in operation. Integrates even better with the fixturlaser dial indicator kit. The shaft alignment means adjustment of the relative position between two connected machines, e.
Shaftdesigner great software to calculate shaft alignment, torsional, axial and whirling vibration. If a manufacturer of a machine or coupling require tighter alignment tolerances, those should be used. Shaft alignment is the positioning of the rotational centers of two or more shafts such that they are colinear when the machines are under normal operating conditions. Whether youre looking for an effective and reliable tool for your daily use or powerful tool that can measure up to even the most demanding tasks, be ready for any job that comes your way. The speed of use and the precision in alignment means that investing in a laser based shaft alignment system usually pays for itself within 36 months. Fixturlaser dials this is a standalone app for performing shaft alignment, using indicator dials, on typical applications such as a motor and a pump. Machinery alignment tolerance tables impact engineering.
Vibralign shaft alignment trainer patrick lawrence guides us through four prealignment steps. Rotalign touch is the first laser alignment tool fully designed to meet the requirements of industrial iot with rfid, wifi, and cloud data transfer. Shaft misalignment is responsible for as much as 50 percent of all costs related to rotating machinery breakdowns. Determine the vertical position of the movable machine using. Standard industry norms for alignment tolerances are cited in table 1. The 5 most useful shaft alignment appsdownload today. Accurate alignment is vital to the operating life of rotating equipment. Power align lite shaft alignment professional calculator. Disk alignment test is able to check your disks for seconds and give advice for optimization in case of need.
407 785 798 1311 985 1164 1518 1614 1168 818 1226 497 1355 1271 1176 1266 1358 1028 532 230 799 285 596 1037 952 446 31 961 282 1004 289